How to Search the USDA National Nutrient Database for Standard Reference

Step Four - Interpreting the Results

The calorie count for each food is the value for "Energy." Notice that the units for energy are kcal. One kilocalorie is equal to one calorie as we know them in nutrition and dieting.
• The total omega-6 essential fatty acids are found under the "Fatty acids - total polyunsaturated" and are designated as "18:2 undifferentiated" for linoleic acid and "20:4 undifferentiated" is arachidonic acid.
• The total omega-3 essential fatty acids are also found under the "Fatty acids - total polyunsaturated" and are designated as "18:3 undifferentiated" for linolenic acid. You can also find the two components of linolenic acid. Eicosapentaenoic acid (EPA) is designated as "20:5 n-3" and Docosahexaenoic Acid (DHA) is designated as "22:6 n-3."
• Oleic acid found in olive oil for example is designated as "18:1" under the monounsaturated category.

• The Best Tool for Nutritional Information
• Step One - Begin the Search for Your Food Item
• Step Two - Limit and Select Your Food Item
• Step Three - The Food Nutrient Report
• Step Four - Interpreting the Results